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authorHarald Welte <laforge@gnumonks.org>2017-08-03 17:00:40 +0200
committerHarald Welte <laforge@gnumonks.org>2017-08-03 17:00:40 +0200
commit2560608fb7e0115c7ecc87cd30623946da43c6c6 (patch)
treea48082b1aaec9ac63fb9d6e7a93151c560c80982 /ggsn_tests/GTP_CodecPort.ttcn
parent379d45aba6797e0ef2f283642ce9364c5b5f0d04 (diff)
First attempt with TranslationPort fails in CtrlFunctions
Diffstat (limited to 'ggsn_tests/GTP_CodecPort.ttcn')
-rw-r--r--ggsn_tests/GTP_CodecPort.ttcn84
1 files changed, 84 insertions, 0 deletions
diff --git a/ggsn_tests/GTP_CodecPort.ttcn b/ggsn_tests/GTP_CodecPort.ttcn
new file mode 100644
index 0000000..44c71e2
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+++ b/ggsn_tests/GTP_CodecPort.ttcn
@@ -0,0 +1,84 @@
+/* Translation Port sitting on top of IPL4_asp UDP to encode/decode GTP */
+/* (C) 2017 by Harald Welte <laforge@gnumonks.org */
+module GTP_CodecPort {
+ import from IPL4asp_PortType all;
+ import from IPL4asp_Types all;
+ import from GTPC_Types all;
+ import from GTPU_Types all;
+
+ /* identifies a remote peer (sender or receiver) */
+ type record GtpPeer {
+ ConnectionId connId,
+ HostName remName,
+ PortNumber remPort
+ }
+
+ /* Decoded GTP1C (Control Plane), used in send and receive direction */
+ type record Gtp1cUnitdata {
+ GtpPeer peer,
+ PDU_GTPC gtpc
+ }
+
+ /* Decoded GTP1U (User Plane), used in send and receive direction */
+ type record Gtp1uUnitdata {
+ GtpPeer peer,
+ PDU_GTPU gtpu
+ }
+
+ /* Translation port on top of IPL4asp; ASP_Event passed through transparently */
+ type port GTPC_PT message map to IPL4asp_PT {
+ out Gtp1cUnitdata to ASP_SendTo with f_enc_Gtp1cUD();
+ in Gtp1cUnitdata from ASP_RecvFrom with f_dec_Gtp1cUD(),
+ ASP_Event;
+ /* we can declare variables here and use them from all functions with "port" label */
+ }
+
+ function f_enc_Gtp1cUD(in Gtp1cUnitdata in_ud, out ASP_SendTo out_ud) port GTPC_PT {
+ out_ud.connId := in_ud.peer.connId;
+ out_ud.remName := in_ud.peer.remName;
+ out_ud.remPort := in_ud.peer.remPort;
+ out_ud.proto := { udp := {} };
+ out_ud.msg := enc_PDU_GTPC(in_ud.gtpc);
+ port.setstate(0);
+ } with { extension "prototype(fast)" };
+
+ function f_dec_Gtp1cUD(in ASP_RecvFrom in_ud, out Gtp1cUnitdata out_ud) port GTPC_PT {
+ out_ud.peer.connId := in_ud.connId;
+ out_ud.peer.remName := in_ud.remName;
+ out_ud.peer.remPort := in_ud.remPort;
+ out_ud.gtpc := dec_PDU_GTPC(in_ud.msg);
+ port.setstate(0);
+ } with { extension "prototype(fast)" };
+
+
+ /* Translation port on top of IPL4asp; ASP_Event passed through transparently */
+ type port GTPU_PT message map to IPL4asp_PT {
+ out Gtp1uUnitdata to ASP_SendTo with f_enc_Gtp1uUD();
+ in Gtp1uUnitdata from ASP_RecvFrom with f_dec_Gtp1uUD(),
+ ASP_Event;
+ /* we can declare variables here and use them from all functions with "port" label */
+ }
+
+ function f_enc_Gtp1uUD(in Gtp1uUnitdata in_ud, out ASP_SendTo out_ud) port GTPU_PT {
+ out_ud.connId := in_ud.peer.connId;
+ out_ud.remName := in_ud.peer.remName;
+ out_ud.remPort := in_ud.peer.remPort;
+ out_ud.proto := { udp := {} };
+ out_ud.msg := enc_PDU_GTPU(in_ud.gtpu);
+ port.setstate(0);
+ } with { extension "prototype(fast)" };
+
+ function f_dec_Gtp1uUD(in ASP_RecvFrom in_ud, out Gtp1uUnitdata out_ud) port GTPU_PT {
+ out_ud.peer.connId := in_ud.connId;
+ out_ud.peer.remName := in_ud.remName;
+ out_ud.peer.remPort := in_ud.remPort;
+ out_ud.gtpu := dec_PDU_GTPU(in_ud.msg);
+ port.setstate(0);
+ } with { extension "prototype(fast)" };
+/*
+ function f_GTPC_listen(inout GTPC_PT portRef, in HostName locName,
+ in PortNumber locPort) return Result {
+ return f_IPL4_listen(portRef, locName, locPort, { udp := {} });
+ }
+*/
+}